关于Spring整合Quartz，以及对quartz的理解

简单说下什么是Quartz，做一个简介：

What is the Quartz Job Scheduling Library?

Quartz is a richly featured, open source job scheduling library that can be integrated within virtually any Java application - from the smallest stand-alone application to the largest e-commerce system. Quartz can be used to create simple or complex schedules for executing tens, hundreds, or even tens-of-thousands of jobs; jobs whose tasks are defined as standard Java components that may execute virtually anything you may program them to do. The Quartz Scheduler includes many enterprise-class features, such as support for JTA transactions and clustering.

官网地址：http://www.quartz-scheduler.org/

这个是官网介绍，翻译总结一下就是：quartz是一个开源的工作任务日常安排，能在任何的java虚拟机中作为一个独立的程序跑起来，能创造一个简单或者复杂的日常任务去执行。简单来说就是定时器，java中自带的定时器是Timer，Quartz也是一个定时器，但是比Timer强大。

Quartz的强大之处？

1.与spring整合，简单，方面，可靠，使用简单。

与spring的整合(使用注解的方式最灵活)：

配置文件：

spring-quartz.xml

<!-- task任务扫描注解 --><task:annotation-driven />

定时任务类(前提需要给Spring扫描器进行扫描)：

package com.lgy.schedule;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.scheduling.annotation.Scheduled;import org.springframework.stereotype.Component;import com.lgy.service.MyserviceInterface;@Componentpublic class TestSchedule {@Autowiredprivate MyserviceInterface myserviceInterface;@Scheduled(cron="0/5 * *  * * ? ")   //每5秒执行一次  public void run() {System.out.println(myserviceInterface.fun(99999));System.out.println("执行了这个线程！");}}

@Scheduled是Quartz的一个注解类，cron是定时表达式。

这样并整合结束了，该run方法每5秒钟并会整合一次。

2.动态的添加任务，修改定定时任务时间，删除定时任务，关闭定时任务。

package com.jeecg.timer;import org.apache.log4j.Logger;import org.quartz.CronScheduleBuilder;import org.quartz.CronTrigger;import org.quartz.JobBuilder;import org.quartz.JobDetail;import org.quartz.JobKey;import org.quartz.Scheduler;import org.quartz.SchedulerException;import org.quartz.Trigger;import org.quartz.Trigger.TriggerState;import org.quartz.TriggerBuilder;import org.quartz.TriggerKey;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.scheduling.quartz.SchedulerFactoryBean;import org.springframework.stereotype.Service;import com.base.util.SpringContextUtil;import com.jeecg.entity.AneTimer;/** * **************************************************************** * 文件名称 : QuartzManager.java * 创建时间 : 2015年9月17日 上午10:19:46 * 文件描述 : 定时任务管理类 * 版权声明 :  * 修改历史 : 2015年9月17日 1.00 初始版本 ***************************************************************** */@Servicepublic class QuartzManager {private final static Logger log= Logger.getLogger(QuartzManager.class);//private static SchedulerFactory gSchedulerFactory = new StdSchedulerFactory();private static SchedulerFactoryBean schedFact ;private static Scheduler sched;/** * 获取调度工厂 * @return */public static SchedulerFactoryBean getSchedulerFactory(){if (schedFact == null) {schedFact = (SchedulerFactoryBean)SpringContextUtil.getBean("schedulerFactoryBean");}return schedFact;}@Autowiredpublic void setSchedFact(SchedulerFactoryBean schedFact) {QuartzManager.schedFact = schedFact;}/** * 获取调度器 * @return * @throws SchedulerException */public static Scheduler getScheduler() throws SchedulerException{if (sched==null) {sched = getSchedulerFactory().getScheduler();}return sched;}/** * @Description: 添加一个定时任务，使用默认的任务组名，触发器名，触发器组名 *  * @param myJob *  */@SuppressWarnings({ "unchecked", "rawtypes" })public static void addJob(AneTimer myJob,Class cls) {log.info(">>>>>>>>>>>>>>>>>>>>>>>>>>>>>method:addJob  start");try {Scheduler scheduler = getScheduler();// 唯一主键String jobName = myJob.getJobname();String jobGroup = myJob.getJobgroup();TriggerKey triggerKey = TriggerKey.triggerKey(jobName, jobGroup);CronTrigger cronTrigger = (CronTrigger) scheduler.getTrigger(triggerKey);if (null == cronTrigger) {JobDetail jobDetail = JobBuilder.newJob(cls).withIdentity(jobName,jobGroup).build();cronTrigger = TriggerBuilder.newTrigger().withIdentity(jobName, jobGroup).withSchedule(CronScheduleBuilder.cronSchedule(myJob.getCronexpression())).build();//cronTrigger.getJobDataMap().put("jobEntity", myJob);scheduler.scheduleJob(jobDetail, cronTrigger);//启动一个定时器if (!scheduler.isShutdown()) {scheduler.start();}} else {cronTrigger = cronTrigger.getTriggerBuilder().withIdentity(triggerKey).withSchedule(CronScheduleBuilder.cronSchedule(myJob.getCronexpression())).build();scheduler.rescheduleJob(triggerKey, cronTrigger);}//等待启动完成//Thread.sleep(TimeUnit.SECONDS.toMillis(10));} catch (Exception e) {e.printStackTrace();} log.info(">>>>>>>>>>>>>>>>>>>>>>>>>>>>>method:addJob  end");}/** * @Description: 暂停一个任务 *  * @param myJob *  */public static void pasueOneJob(AneTimer myJob) {log.info(">>>>>>>>>>>>>>>>>>>>>>>>>>>>>method:pasueOneJob  start");try {Scheduler scheduler = getScheduler();// 唯一主键String jobName = myJob.getJobname();String jobGroup = myJob.getJobgroup();TriggerKey triggerKey = TriggerKey.triggerKey(jobName, jobGroup);Trigger trigger = scheduler.getTrigger(triggerKey);//if(null==trigger){//log.info(">>>>>>>>>>>>>>>>>>>>>>>>>>>>>method:removeJob trigger is NULL ");//return;//}JobKey jobKey = trigger.getJobKey();scheduler.pauseJob(jobKey);} catch (Exception e) {throw new RuntimeException(e);}log.info(">>>>>>>>>>>>>>>>>>>>>>>>>>>>>method:pasueOneJob  end");}/** * @Description: 重启一个任务 *  * @param myJob *  */public static void resOneJob(AneTimer myJob) {log.info(">>>>>>>>>>>>>>>>>>>>>>>>>>>>>method:resOneJob  start");try {Scheduler scheduler = getScheduler();// 唯一主键String jobName = myJob.getJobname();String jobGroup = myJob.getJobgroup();TriggerKey triggerKey = TriggerKey.triggerKey(jobName, jobGroup);Trigger trigger = scheduler.getTrigger(triggerKey);//if(null==trigger){//log.info(">>>>>>>>>>>>>>>>>>>>>>>>>>>>>method:removeJob trigger is NULL ");//return;//}scheduler.rescheduleJob(triggerKey, trigger);//Thread.sleep(TimeUnit.MINUTES.toMillis(10));} catch (Exception e) {throw new RuntimeException(e);}log.info(">>>>>>>>>>>>>>>>>>>>>>>>>>>>>method:resOneJob  end");}/** * @Description: 修改一个任务的触发时间 *  * @param jobName */public static void modifyJobTime(AneTimer myJob, String time) {log.info(">>>>>>>>>>>>>>>>>>>>>>>>>>>>>method:modifyJobTime  start");try {Scheduler scheduler = getScheduler();// 唯一主键String jobName = myJob.getJobname();String jobGroup = myJob.getJobgroup();TriggerKey triggerKey = TriggerKey.triggerKey(jobName, jobGroup);CronTrigger cronTrigger = (CronTrigger) scheduler.getTrigger(triggerKey);myJob.setCronexpression(time);CronScheduleBuilder cronScheduleBuilder = CronScheduleBuilder.cronSchedule(myJob.getCronexpression());cronTrigger = cronTrigger.getTriggerBuilder().withIdentity(triggerKey).withSchedule(cronScheduleBuilder).build();scheduler.rescheduleJob(triggerKey, cronTrigger);//Thread.sleep(TimeUnit.MINUTES.toMillis(60));} catch (Exception e) {throw new RuntimeException(e);}log.info(">>>>>>>>>>>>>>>>>>>>>>>>>>>>>method:modifyJobTime  end");}/** * @Description: 移除一个任务(使用默认的任务组名，触发器名，触发器组名) *  * @param jobName *  */public static void removeJob(AneTimer myJob) {log.info(">>>>>>>>>>>>>>>>>>>>>>>>>>>>>method:removeJob  start");try {Scheduler scheduler = getScheduler();// 唯一主键String jobName = myJob.getJobname();String jobGroup = myJob.getJobgroup();TriggerKey triggerKey = TriggerKey.triggerKey(jobName, jobGroup);Trigger trigger = scheduler.getTrigger(triggerKey);if(null==trigger){log.info(">>>>>>>>>>>>>>>>>>>>>>>>>>>>>method:removeJob trigger is NULL ");return;}JobKey jobKey = trigger.getJobKey();scheduler.pauseTrigger(triggerKey);// 停止触发器scheduler.unscheduleJob(triggerKey);// 移除触发器scheduler.deleteJob(jobKey);// 删除任务//Thread.sleep(TimeUnit.MINUTES.toMillis(10));} catch (Exception e) {throw new RuntimeException(e);}log.info(">>>>>>>>>>>>>>>>>>>>>>>>>>>>>method:removeJob  end");}/** *  * 方法表述  获得执行器状态 * @return * String */public static String getStatus(AneTimer myJob){String state = "NONE";try {Scheduler scheduler = getScheduler();// 唯一主键String jobName = myJob.getJobname();String jobGroup = myJob.getJobgroup();TriggerKey triggerKey = TriggerKey.triggerKey(jobName, jobGroup);//trigger stateTriggerState triggerState = scheduler.getTriggerState(triggerKey);state = triggerState.toString();} catch (Exception e) {throw new RuntimeException(e);}return state;}/** * 是否存在任务 * 方法表述 * @param myJob * @return * boolean */public static boolean hasTrigger(AneTimer myJob){boolean isHas = true;try {Scheduler scheduler = getScheduler();// 唯一主键String jobName = myJob.getJobname();String jobGroup = myJob.getJobgroup();TriggerKey triggerKey = TriggerKey.triggerKey(jobName, jobGroup);Trigger trigger = scheduler.getTrigger(triggerKey);if(null==trigger){log.info(">>>>>>>>>>>>>>>>>>>>>>>>>>>>>method:removeJob trigger is NULL ");isHas = false;}} catch (SchedulerException e) {isHas = false;e.printStackTrace();}return isHas;}/** * @Description:启动所有定时任务 *  */public static void startJobs() {try {Scheduler sched = getScheduler();sched.start();} catch (Exception e) {throw new RuntimeException(e);}}/** * @Description:关闭所有定时任务 *  */public static void shutdownJobs() {try {Scheduler sched = getScheduler();if (!sched.isShutdown()) {sched.shutdown();}} catch (Exception e) {throw new RuntimeException(e);}}}

3.提供存储化方式

Quartz提供两种基本作业存储类型。第一种类型叫做RAMJobStore，第二种类型叫做JDBC作业存储。区别和联系用下图表示：

类型

优点

缺点

RAMJobStore

不要外部数据库，配置容易，运行速度快

因为调度程序信息是存储在被分配给JVM的内存里面，所以，当应用程序停止运行时，所有调度信息将被丢失。另外因为存储到JVM内存里面，所以可以存储多少个Job和Trigger将会受到限制

JDBC作业存储

支持集群，因为所有的任务信息都会保存到数据库中，可以控制事物，还有就是如果应用服务器关闭或者重启，任务信息都不会丢失，并且可以恢复因服务器关闭或者重启而导致执行失败的任务

运行速度的快慢取决与连接数据库的快慢

参考配置文件如下：

# Default Properties file for use by StdSchedulerFactory# to create a Quartz Scheduler Instance, if a different# properties file is not explicitly specified.##============================================================================# Configure Main Scheduler Properties#============================================================================org.quartz.scheduler.instanceName = DefaultQuartzSchedulerorg.quartz.scheduler.rmi.export = falseorg.quartz.scheduler.rmi.proxy = falseorg.quartz.scheduler.wrapJobExecutionInUserTransaction = false#============================================================================# Configure ThreadPool#============================================================================org.quartz.threadPool.class = org.quartz.simpl.SimpleThreadPoolorg.quartz.threadPool.threadCount = 10org.quartz.threadPool.threadPriority = 5org.quartz.threadPool.threadsInheritContextClassLoaderOfInitializingThread = true#============================================================================# Configure JobStore#============================================================================#org.quartz.scheduler.classLoadHelper.class=org.quartz.simpl.CascadingClassLoadHelperorg.quartz.jobStore.misfireThreshold = 60000org.quartz.jobStore.useProperties = trueorg.quartz.jobStore.class = org.quartz.impl.jdbcjobstore.JobStoreTXorg.quartz.jobStore.driverDelegateClass = org.quartz.impl.jdbcjobstore.StdJDBCDelegate#havent cluster spring#org.quartz.jobStore.dataSource = myDS org.quartz.jobStore.tablePrefix = QRTZ_org.quartz.jobStore.isClustered = false  org.quartz.jobStore.maxMisfiresToHandleAtATime=1#==============================================================  #Non-Managed Configure Datasource  if you don't use spring cluster#==============================================================   #org.quartz.dataSource.myDS.driver = com.mysql.jdbc.Driver   #org.quartz.dataSource.myDS.URL = jdbc\:mysql\://192.168.204.159\:3306/test  #org.quartz.dataSource.myDS.user = root   #org.quartz.dataSource.myDS.password = root #org.quartz.dataSource.myDS.maxConnections =10